package chap09.Animal;

public class Test {
    public static void main(String[] args) {
        Cow cow1 = new Cow("aa", 123);
        Sheep sheep1 = new Sheep("喜羊羊", 2006);
        Sheep sheep2 = new Sheep("懒羊羊", 2008);

        cow1.eat();
        sheep2.sleep();
        sheep1.introduction();

    }
}